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    span{display:inline-block;line-height:1; height:1em; text-align:left;vertical-aglin:-.25em; overflow:hidden;}
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      content:"...\A..\A.";
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      animation:dot 1s infinite step-start both;
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    @keyframes dot{
      33%{transform:translateY(-2em);}
      66%{transform:translateY(-1em);}
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